package journal_test

import (
	"os"
	"path/filepath"
	"testing"

	journal "git.golem15.com/golem15/sm-journal-plugin"
	"git.golem15.com/golem15/summercms/modules/pact"
	"github.com/goccy/go-yaml"
)

func TestJournalTokenScopes(t *testing.T) {
	p := &journal.Plugin{}
	scopes := p.TokenScopes()
	if len(scopes) != 2 {
		t.Fatalf("TokenScopes len = %d, want 2", len(scopes))
	}
	byName := map[string]pact.TokenScope{}
	for _, s := range scopes {
		byName[s.Name] = s
	}
	journalScope, ok := byName["journal"]
	if !ok {
		t.Fatal("missing journal scope")
	}
	readScope, ok := byName["journal:read"]
	if !ok {
		t.Fatal("missing journal:read scope")
	}
	if len(journalScope.Permissions) != 1 || journalScope.Permissions[0] != "golem15.journal.*" {
		t.Fatalf("journal permissions = %#v", journalScope.Permissions)
	}
	if len(readScope.Permissions) != 1 || readScope.Permissions[0] != "golem15.journal.*" {
		t.Fatalf("journal:read permissions = %#v", readScope.Permissions)
	}
	all := []string{"GET", "HEAD", "POST", "PUT", "PATCH", "DELETE"}
	if got := journalScope.Methods; !stringSlicesEqual(got, all) {
		t.Fatalf("journal methods = %#v, want %#v", got, all)
	}
	if got := readScope.Methods; !stringSlicesEqual(got, []string{"GET", "HEAD"}) {
		t.Fatalf("journal:read methods = %#v", got)
	}

	keys := []string{
		journalScope.Label, journalScope.Description,
		readScope.Label, readScope.Description,
	}
	for _, lang := range []string{"en", "pl"} {
		path := filepath.Join("lang", lang, "lang.yaml")
		raw, err := os.ReadFile(path)
		if err != nil {
			t.Fatalf("read %s: %v", path, err)
		}
		var root map[string]any
		if err := yaml.Unmarshal(raw, &root); err != nil {
			t.Fatalf("yaml %s: %v", path, err)
		}
		for _, key := range keys {
			if !phraseExists(root, key) {
				t.Fatalf("%s missing phrase key %s", path, key)
			}
		}
	}
}

func stringSlicesEqual(a, b []string) bool {
	if len(a) != len(b) {
		return false
	}
	for i := range a {
		if a[i] != b[i] {
			return false
		}
	}
	return true
}

// phraseExists resolves plugin keys like golem15.journal::lang.scopes.journal
// against the plugin lang.yaml root (scopes.journal under the file).
func phraseExists(root map[string]any, key string) bool {
	const prefix = "golem15.journal::lang."
	if len(key) < len(prefix) || key[:len(prefix)] != prefix {
		return false
	}
	parts := splitDot(key[len(prefix):])
	var cur any = root
	for _, p := range parts {
		m, ok := cur.(map[string]any)
		if !ok {
			return false
		}
		cur, ok = m[p]
		if !ok {
			return false
		}
	}
	switch v := cur.(type) {
	case string:
		return v != ""
	default:
		return cur != nil
	}
}

func splitDot(s string) []string {
	out := []string{}
	start := 0
	for i := 0; i < len(s); i++ {
		if s[i] == '.' {
			out = append(out, s[start:i])
			start = i + 1
		}
	}
	out = append(out, s[start:])
	return out
}